Watch



s. E, L'ESHER,

wAcH. APPLICATION FlLEDAUGhH, ISHS.

' 1,367,403. I mam Feb.1,1921.

lLeshm/t @Hozum BEST AYALABLE CCPg UNITED isTAT'Es:

1 vSAMUEL E. inslaan, or trataron, c frrro.

WATCH.

Specication of Letters Patent.

Patented Feb. 1, 1921.

- Application led August 11, 1919. Serial No. 316,631.

To all whom -z't may concern Be it known that I, SAMUEL E. LEsrmP., a citizen of the United States, residing at Marion, in the county of Marion and tate of Ohio, have invented certain new and useful Improvements in Watches, of which the following is a specification.

This invention has for its object to provide an improved watch equipped with a pivoted gravity actuated pawl or stop, which, as the watch or other time piece is moved into one position engages the balance wheel and prevents operation of the mechanism, and when the watch is returned to its initial position, disengages the balance wheel, permitting the operating of the watch to continue.

Another object is the provision of a device of this character in which the pivoted pawl may be swung to such position that the removable back of the watch case is utilized to maintain the pawl in inoperative position.

Another object is the provision of a device of this character of simple and inexpensive construction which may be applied to various conventional types of watches now in use.

IVith these and other objects in view the invention consists in the novel features of construction, combination, and arrangement of parts as will be hereinafter referred to, and more particularly pointed out in the following specification and claims.

In the accompanying drawings,

Figure l represents a rear elevation of a watch equipped with the improved stop, the back or rear cover of the watch being removed.

Fig. 2- represents an edge elevation of the watch, partly in section.

Fig. 3 represents a similar view, illustrating the pivoted stop swung in inoperative position.

Referring t0 the drawing in detail, wherein similar reference numerals designate corresponding parts throughout the several views, the numeral indicates the case of a conventional type of watch equipped with the usual removable back or rear cover, plate 5, and balance wheel 6. fIhe improved gravity actuated stop consists of a base plate 7 removably secured to the frame structure of the watch as by the screw 8,

and'provided with apertured ears 9, to which the pawl or stop l0 is pivotally secured. The free terminal of the stop is preferably directed angularly for engagement with the adjacent surface of the balance wheel 6, and is of such length as to be limited in its outward movement by engagement with the watch back 5.

By removing the back or cover plate 5 and swinging the pivoted stop l0 outwardly of the wheel 6 and against the back of the watch frame as suggested in Fig. 3, the cover or back 5a, when replaced in position over the case 5, maintains the stop in operative position.

In actual use, when it is desired to determine the time actually spent by a mechanic or other worker upon several jobs, the time at which the work is begun is noted by a reference to the hands of the watch, and by placing the watch upon its back 5a, the stop l0 drops out of engagement of the wheel 6, thus permitting the watch mechanism to operate. At the time that the worker ceases, the position ofthe watch is inverted, and the pivoted stop engaging the balance wheel 6 prevents further operation of the watch mechanism.

At such time'when work is resumed, the watch isagain placed upon its back, and continues operation, registering the time spent by the mechanic or other worker at work. In this manner accurate account of the expenditure of time on any one of va- 1f`ious pieces of work can be readily accounted What I claim is l. An attachment for a watch comprising a removable base plate and a pivoted gravity actuated pawl connected with said plate for engagement with a balance wheel to prevent operation of the watch.

2. The combination with a watch including a balance wheel, of a pivoted gravity actuated stop engageable with a balance wheel to prevent operation of the watch, and movable when the watch is laid upon its back to release the balance wheel.

3. The combination with a watch including a balance wheel and removable back, of a pivoted gravity actuated stop engageable with the balance wheel to prevent operation BEST AVALABLE COP@ of the Watch, and limited in its outward such position as to prevent engagement movement by engagement with the back. thereof With the balance Wheel and being 4:. The combination with a Watchl includheld in such inoperative position by said l0 ing a balance wheel and removable back, of bak. 5 a pivoted gravity actuated stop engageable In testimony whereof I aiix my signature with a balance wheel to prevent operation hereto.l of the Watch, said stop-being movable to SAMUEL E. LESHER. 

